BMW 8 Series (G14) (2018) is 476 kg (1,049 lbs) lighter than BMW X6 (2020).
BMW X6 (2020) is 98 mm (3.86 inch) longer, 117 mm (4.61 inch) wider, 353 mm (13.90 inch) higher and has 230 liters (8.12 ft3) bigger cargo space than BMW 8 Series (G14) (2018).